Main and Rod Bearings instruction picture.
I'm in the process of replacing a crankshaft on a 99 blazer 4.3. I have the new crank and matching bearings. I have the torgue spec . Can't find a book with specific instruction as to position of bearings. Any help would be speediely appreciated.
Connecting Rod Nut First Pass 20 ft.lb Final Pass 70 deg. Connecting Rod Bearing Clearance (Production) 0.0015 - 0.0031 inConnecting Rod Bearing Clearance (Service) 0.0010 - 0.0030 inConnecting Rod Side Clearance 0.006 - 0.017 in
Crankshaft Bearing Cap Bolt (Preferred Method) First Pass 15 ft.lbFinal Pass 73 deg. Crankshaft Bearing Cap Bolt (Optional Strategy) 77 ft.lbCrankshaft Bearing Clearance (Journal #1 - Production) 0.0008 - 0.0020 inCrankshaft Bearing Clearance (Journal #2,#3, and #4 - Production) 0.0011 - 0.0023 inCrankshaft Bearing Clearance (Journal #1 - Service) 0.0010 - 0.0020 inCrankshaft Bearing Clearance (Journal #1, #2, #3, and #4 - Service) 0.0010 - 0.0250 inCrankshaft End Play 0.002 - 0.008 inCrankshaft Journal Diameter (Journal #1) 2.4488 - 2.4495 inCrankshaft Journal Diameter (Journal #2 and #3) 2.4485 - 2.4494 inCrankshaft Journal Diameter Journal #4 2.4480 - 2.4489 inCrankshaft Journal Out Of Round Production 0.0002 in
Note: MaximumService 0.0010 in
Note: MaximumCrankshaft Journal Taper Production 0.0003 in
Note: MaximumCrankshaft Runout 0.0010 in
Note: MaximumConnecting Rod Journal Diameter 2.2487 - 2.2497 inConnecting Rod Journal Taper Production 0.00030 in
Note: MaximumService 0.0010 in
Note: MaximumConnecting Rod Journal Out-of-Round Production 0.0002 in
Note: MaximumService 0.0010 in
Note: Maximum
Crankshaft Bearing Cap Bolt (Preferred Method) First Pass 15 ft.lbFinal Pass 73 deg. Crankshaft Bearing Cap Bolt (Optional Strategy) 77 ft.lbCrankshaft Bearing Clearance (Journal #1 - Production) 0.0008 - 0.0020 inCrankshaft Bearing Clearance (Journal #2,#3, and #4 - Production) 0.0011 - 0.0023 inCrankshaft Bearing Clearance (Journal #1 - Service) 0.0010 - 0.0020 inCrankshaft Bearing Clearance (Journal #1, #2, #3, and #4 - Service) 0.0010 - 0.0250 inCrankshaft End Play 0.002 - 0.008 inCrankshaft Journal Diameter (Journal #1) 2.4488 - 2.4495 inCrankshaft Journal Diameter (Journal #2 and #3) 2.4485 - 2.4494 inCrankshaft Journal Diameter Journal #4 2.4480 - 2.4489 inCrankshaft Journal Out Of Round Production 0.0002 in
Note: MaximumService 0.0010 in
Note: MaximumCrankshaft Journal Taper Production 0.0003 in
Note: MaximumCrankshaft Runout 0.0010 in
Note: MaximumConnecting Rod Journal Diameter 2.2487 - 2.2497 inConnecting Rod Journal Taper Production 0.00030 in
Note: MaximumService 0.0010 in
Note: MaximumConnecting Rod Journal Out-of-Round Production 0.0002 in
Note: MaximumService 0.0010 in
Note: Maximum
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